Jointed flies are becoming more and more popular because they offer something traditional flies can’t; realistic or exaggerated movement. This sculpin is tied up by Erik Rambo in a great step by step sequence. I would change the size of the back hook to a shorter shank hook if I try tying this one. The shorter hook will offer a better hook rate than the longer shanked hooks. By using the shorter shank hooks, the fly works more like a tube fly, allowing you to tie a large fly and use a short shank.
You can find the tying instructions on Quest Outdoors here.